Peeling device for the inner-embryo membrane of coffee bean

ABSTRACT

The invention is related to a kind of device inside a grinder to peel the inner embryo membrane of coffee beans. It mainly comprises of a motor with an extruded motor shaft, a positioning cylinder located on the lateral side of a motor and equipping a lower exit inside an conveyor base, and a conveyor base, which is on the lateral side of the grinder and equips an extruded exit end on the other side of the grinder. The center of the motor extrudes a shaft connecting an eccentric synchronic rotation grinding bar. During rotation, the shaft is in a state of eccentricity, thus, the grinding surface completely hits the inner ring rim of the positioning cylinder and coffee beans are ground into particles. There is an inclined conveyor platform on the conveyor base. When grinding particles fall, due to low specific weight, the embryo membrane is sucked by a fan located on the lateral wall of a grinder and is collected in a dust collection bag. The particles not sucked out fall along the inclined conveyor platform on the conveyor base into a material collection bag. After grinding, the separation of coffee particles and the membrane is fully achieved.

BACKGROUND OF THE INVENTION

[0001] 1) Field of the Invention

[0002] A kind of device in peeling the inner embryo membrane for coffeebeans is structurally characterized as an eccentric grinding bar on amotor shaft for synchronic rotation, an inclined conveyor platform on aconveyor base, and a fan on the lateral side of a grinder. When themotor shaft rotates, the grinding surface of the grinding bar completelyhits the inner ring rim of a positioning cylinder and coffee beans areground in particles. When grinding particles fall, due to low specificweight, the embryo membrane is sucked by the fan on the lateral wall ofa grinder and is collected in a dust collection bag. Those particles notsucked out fall along the inclined conveyor platform on the conveyorbase into a dust collection bag. After grinding, the separation ofcoffee particles and the membrane is fully achieved.

[0003] 2) Description of the Prior Art

[0004] Normally, coffee bean should be dried, toasted and cooked inadvance to form dry and crispy coffee beans. The beans will be groundinto fine-shaped coffee particles (not powder). The invention, a peelingdevice for the inner embryo membrane of coffee bean, is to separate thebi-sectional coffee beans and the embryo membrane inside thebi-sectional coffee beans during the grinding process. When one makescoffee, most of the time, the bitter and astringent taste comes from theinner embryo membrane inside coffee beans. It is much time-consuming formanual separation of the coffee beans and the embryo membrane. Currentgrinding coffee making utilizes the whole pieces of coffee beans forgrinding without peeling of the inner embryo membrane, therefore,additional bitter and astringent taste for the coffee is added. Theoriginal taste of sweet smell for the coffee is lessened.

SUMMARY OF THE INVENTION

[0005] The primary objective of the invention is to provide a kind ofdevice to peel off the inner embryo membrane on the coffee beans. Itcomprises of a motor equipping a shaft in the center, a positioningcylinder on the lateral side of the motor and a lower exit inside theconveyor base, and a conveyor base on the lateral side of the grinderand an exit end extruded on the other side the grinder. There is asynchronic eccentric grinding bar on the motor shaft. Therefore, duringrotation, the bar is in a state of eccentricity. The eccentric grindingbar hits exactly the inner rim of the positioning cylinder, thus, coffeebeans are ground in particles. There is an inclined conveyor platform onthe conveyor base. The ground particles fall and the inner embryomembrane is sucked by a fan on the lateral wall of the grinder into adust collection bag due to low specific weight. The particles not suckedout fall along the inclined conveyor platform into a material collectionbag. Thus, after grinding, the coffee particles and inner embryomembrane are completely separated and the objective of eliminatingcoffee bitter and astringent is achieved.

[0006] On the basis of constant research and improvement, the inventorfinally developed the invention.

[0007] The followings are brief description and legend for optimalembodiments of the invention for committee's better understanding in thestructural characteristics and operations of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008]FIG. 1 is the exploded drawing of the invention.

[0009]FIG. 2 is an isometric assembly drawing of the invention.

[0010]FIG. 3 is an internal isometric drawing of the invention.

[0011]FIG. 4 is a planar embodiment drawing of the invention.

[0012]FIG. 5 is a drawing of grinding process embodiment for theinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0013] Please refer FIGS. 1 through 3 for the comprehension of thestructural state of the invention. It mainly comprises of a motor 2 onthe proper location of the internal wall for a grinder 1, a positioningcylinder 3 on the lateral side of the motor, and a positioning conveyorbase 4, which is empty and is equipped for the penetration of apositioning cylinder 3 from the lateral side. The center of the motor 2extrudes a motor shaft 21 connecting an eccentric grinding bar 22 withsynchronic rotation. The eccentric grinding bar 22 fits exactly thepositioning cylinder 3. There are grinding threads 221 on the grindingbar 22, thus, grinding compression occurs between the bar and inner rimof the positioning cylinder 3 during rotation.

[0014] The top of the positioning cylinder 3 is connected to afunnel-shaped loading container 31, which is externally connected. Onthe proper location of the bottom of the positioning cylinder 3, thereis a grinding particle exit 32. The lateral rim of the positioningcylinder 3 extrudes the piecing hole 40 on the conveyor base 4. Thelower exit 32 on the positioning cylinder 3 is located exactly insidethe empty conveyor base 4.

[0015] The conveyor base 4 is in empty base structure. Its lateral endis connected to the lateral wall of the grinder 1. The other end of thegrinder extrudes an exit end 41. The conveyor platform 42 on theconveyor base 4 is in inclined structural state, thus after the groundparticles R are peeled, the particles fall smoothly from the exit end 41to a material collection bag 43.

[0016] On the lateral wall of the grinder 1 near the lower fallingposition of ground particles, there is a fan 11. After peeling, theembryo membrane will be sucked out and the grinding particles fall formthe inclined plane of the conveyor base 4 to enter the dust collectionbag 43. Through a snake-shaped tube 12, the exit end of the fan 11 isconnected to the duct collection bag 13 in collecting embryo membrane.

[0017] Please refer to FIGS. 4 and 5, when coffee beans fall intoloading container 31 and distribute inside positioning cylinder, theshaft 21 of a motor rotates together with the grinding shaft 22. Becausethe grinding bar 22 is in eccentric bar structure, the grinding bar 22is in eccentric state when it rotates with the motor shaft. The grindingface hits the inner rim of the positioning cylinder 3 with compression.After the repetitive grinding and compression between the grindingthreads 22 on the grinding bar 22, coffee beans are evenly crushed.Then, the grinding particle are gradually pushed to the end of thegrinding bar 22, therefore, the ground particles R fall from the loadingcontainer 32 on the bottom of the positioning cylinder 3. Because coffeebeans are ground in particles, the embryo membrane S inside coffee beansare peeled from semi-sphere coffee beans. During the falling processprior to entering the collection bag, because the gravity of innerembryo membrane S is less than that of the particle R, the membrane issucked form the fan 11 on the lateral wall of the grinder 1 and iscollected into a dust collection bag 13. The particle not sucked outwill fall along the inclined platform 42 on the conveyor base 4 into thematerial collection bag 43.

[0018] Please refer FIG. 4. A vibration structure 5 can be equipped onthe bottom of the conveyor base 4 of the grinder 1. By the aid thevibration structure 5, the fluidity smooth of grinding particle on theconveyor platform 42 of the conveyor base 4 is guaranteed to avoidparticle blockage on the conveyor platform 42.

[0019] The above explanation is a substantial embodiment of theinvention, which provides greater practical performance andsimplification than products of prior art. Furthermore, the presentinvention meets all new patent application requirements and is lawfullysubmitted for review and the granting of the commensurate patent rightsto thereby encourage the spirit of invention and its rightful protectionunder the patent law.

The invention, a kind of device to peel off the inner embryo membrane onthe coffee beans, comprises of a motor on the proper location ofinternal wall for a grinder, a positioning cylinder on the lateral sideof the motor, and a positioning conveyor base, which is empty and isequipped for the penetration of the cylinder from the lateral side;furthermore, the center of the motor extrudes a motor shaft connectingan eccentric grinding bar for synchronic rotation and the bar fitsexactly the positioning cylinder; also, there are grinding threads onthe bar, thus, grinding compression occurs between the bar and inner rimof the cylinder; moreover, the top of the cylinder is connected to afunnel-shaped loading container, which is externally connected and onthe proper location of the bottom of the cylinder, there is a grindingparticle exit; also, the lateral rim of the cylinder extrudes into theconveyor base and the lower exit on the cylinder is located exactlyinside the empty conveyor base, which is an empty structure;furthermore, the lateral end of the base is connected to the lateralwall of the grinder and the other end of the grinder extrudes an exitend; also, an conveyor platform on the conveyor base is in inclinedstructural state, thus, ground particles fall from the lateral wall ofthe grinder near the conveyor base along the inclined plane of theplatform into a material collection bag and the inner embryo membrane issucked out by a fan on he lateral side of the grinder.
 2. As mentionedin claim 1 of a kind of device to peel off the inner embryo membrane onthe coffee beans, through a snake-shaped tube, the exit end of a fan onthe lateral side of a grinder is connected to a duct collection bag tocollect inner embryo membrane.
 3. As mentioned in claim 1 of a kind ofdevice to peel off the inner embryo membrane on the coffee beans, avibration structure can be equipped on the bottom of the conveyor baseof the grinder and by the aid of the vibration structure, the fluiditysmooth of the grinding particle on the conveyor platform of the conveyorbase is guaranteed to avoid particle blockage on the conveyor platform.